Home / 690,418.52-1,035,281.49-402,323.48

Finding the Fourth Proportional to 690,418.52, 1,035,281.49 and 402,323.48

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Solution

The fourth proportional to 690,418.52, 1,035,281.49 and 402,323.48 is: 603,283.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,418.52 : 1,035,281.49 = 402,323.48 : x
  2. Step 2: Convert to fraction form
    690,418.52/1,035,281.49 = 402,323.48/x
  3. Step 3: Cross multiply
    690,418.52x = 1,035,281.49 × 402,323.48
  4. Step 4: Simplify right side
    690,418.52x = 416,518,051,836.39
  5. Step 5: Solve for x
    x = 416,518,051,836.39/690,418.52
  6. Step 6: Final answer
    x = 603,283.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.